You are stuck on the idea that fighting game soundtracks NEED to be epic, and crushing. Lighten up, enjoy the cool refreshing breeze.
Wha WHA? Yes, I do expect a fighting game soundtrack to be epic. WHY ON EARTH WOULD I WANT TO BE CALM WHEN THIS SHIT IS GOING ON?
A fighter soundtrack, regardless of the pace of the actual fighter, has a few obligations. One of those is keeping the player on their toes. Related to that, the music should not cause a player to yawn, or loss focus when they hear music that has no business in a fighting game.
For the record, Guilty Gear X would go great with Riders on the Storm, Strange (for Christ sake!), and probably many other great Doors songs.
I tried to put the two together and... got nothing. Sorry. They just don't go together. They go together about as well as Kanye West in Metal Slug.
The deal is, I coulda taken this wanna-be Miles Davis music if it only affected one stage, and that stage would have to take place in a lounge. To have sad attempts to redo "Cool Jazz" in a cave, a circus and a swamp makes no damn sense at all.
Another reason that I loved MvC1's soundtrack was because the music really fit each of the characters. When you hear any of those themes, you can feel that the music is somehow describing the character. MvC2 had none of that. The music is completely out of place, and doesn't fit any part of the game.
In CvS2, I didn't especially like this song:
however, at least they had the song playing right outside a lounge, where it somewhat fits!